Automatic cut-off for talking-machines.



J. W. NELSON AUTOMATIG GUT-OPP m1 TALKING MACHINES.

APPLICATION YILED MAILA, 1911 1 G529 E l 09 I Patented. Mar. 26, 1912.

aside elevation-offt-hesame.

' 25 I.-i-In these'- drawin s.Iihaveillustrated one he invention and have.

- shown the same as applied to a talking ma.-

UNITED STATES PATE joirmos;

JAMES LOF amn on; omo, assmuon. or one-Bur ro nmnosc uniso or'uanron, ogre. H

"mmmm CUT-OFFI'OR unxmq-nacnmssi. "*j;

1.10 This invention relates-to automatic cut- 7 ofi's for talking-machine s and the. ob ect of the invention is to 'proide a brake-operatj ingmechanism which .v ill be positive in all p its-actions, ther by insuring its proper op-- 1-5 'eration-and the stopping; of-the record at' rthe proper. time.;,.' It. is a'furtherobject toprovide suoh a dey -vicejvhich will.be' verysimple in 1ts"con-" struction iand"opera tion and whichean "be .cf isa top, planfv'iewfof a, tallnnfimaehine "equippedwith my invention;--an Fig 2 1s embodiment-L of gt chine "of-'a well lmown character and con}- 'prising a motor-casing 1 upon'wlnch .is

f mounted a rotatable support, such as a turn- :table '2, which carries t e record 3, which; in

. this type of machine,.is lltllle form-of a disk) The sound-reproducing device .4 is

;supporte(l nbov e' and adjacent to the; turn i table and the' reeord carr ed. thereby b'y means of an arm 5 which is pivotally supported on abra'c'ket Gsecured to one side of the motor easingior supportingframe 1. As the sound reproducing'deviee 4 travels int" Ward along-the spiral groove constituting the'record thearm 5 will move about its piv-r otal' center,.and, incarrying outiny invention, I utilize;this swinging movement of the arm to impart movement to the brake-actuating mechanism. Any; suitable type of stop *jmay be'em ployed,jand, "1 the'pres'ent instance, I have shown thes'ame as comprising.

the usual brake'7 which is supportedonthe motor casing and has africtlon plunger to 50. engage the edge enli ment and check the-movement of the'latter. Thfisrbra'ke is controlled by. means of a leverBgWhmh, in

the ordinary operation of the dev ce; is 0011-. trolled by hand; -In rthe present instance-l:

' 'have. provided.1a brake actuating specifications! Letter- Patent :Patented Mar. 26,1912. r Application fllilarch-l, 1911; Serial Ito-"812,290.

which is opei'a tively connectedwith the ln'ake-T through the "medium of the lever 8 and is adaptedrto be engaged by a part-earried' by the turntable The brake-actuating.

'member is" normally SlliPOlllKl out ofthe path of the part carried y the turntable but 1s movedinto 'the'path QtsuEh part by the' movement of the arm 5 as the reproducer 4 travels oyer the record; The construction of the several parts-of the mechanism'for accomplishing. this, result may take various forms blltflljl the present instance the brake-- operating member comprises a lever 9.pi.v-

. otally mountedona suitable support,- such as anextensi0n'10,secured to the motor ens-i ling adjac'ent tojthe braoket-.- 6'Icarrying the arm .5. .One end of the lever- 9 is-arranged normally at a point -*ad'acen't to :the edgeof theturntable butoutjo the'path oi the part carried .thereby.fo- This-partpin'the present- 76 instance, comprises a 11 depending from r i the lojw r side 'thereo 4 The actuating mem her or lever 9 is operatively-connected-with the. brakeby means of a rod-1g loosely com .nectedlto the lever 8. 1 The .connjeotion- .80 between. thel'rod '12-and the lever 8 permits the actuating member :to bemoved into. the

pathflot. the pih 11 before the-operative con-j nection between the and the lever'is 1 established, a as The connection between the rod and the lever maybe ofany suitable character but, in the present instance,'the'rod.is provided within longitudinal slot 13=adapted to extendgabout thelug 14 usually found on the lever-of a brake of this character; thereby enabling the device] to be attached to the ordinary brake without'modifica'tion of the latter. The connection between. the. actuat- 'ingmember 9 andthe-arm 5 preferablycomprises a. movable member or bar 15 slidablyv mbuntedmn the extension 10, preferably'by means-of a pin 16 extendingthrough a-slotj 17 formed 'inthe bar. This ,bar is conhected tithe-lever 9' on-.that.side,of its' pivotal -oe nt'er opposite the point of con-.

:nection. or the'rod 12 and is provided with 1 a laterallyextendinglug 18 which is ar-.- t s nt e' p h. 0

'fmmthes fm fin 19d (1" ger epen mg theTe roduoing device approaches the-endoft ereoord the movement ofthe arm 5 about its pivotal-eenterwill'cause thefinger 19 to. engage'thelug 18 and move the l5 'longitudinally.- This movement of the bar causes the actuatingmember 9 to swing about its pivotal center to bring the inner end thereof into the path of the pin 10 carried by the turntable. This pin engaging the end of the actuating member causes the brake 7. to be actuated and the movement of the turntable"-and record checked, The brake, as above stated, is a friction brake and the checking'of the turntable is. gradual and not instantaneous. This" gradual sto 'pingofthe turntable is perin mittedby a lowing the actuating member 9 to move about its pivotal center a distance sufiicient to carry the inner end of the same again out of the-path of, the pin 11. The

.bar 15 maybe manipulatedby hand to re, store the actuating member 9 to its normal position and release the brake 7, thereby :again permitting the turntable to rotate.

To this end the, bar 15 is referably pro vided with a. finger piece or ng arranged on the side'of the arm 5, and the horn which is connected .the'rewith,j-opposite the brake and within convenient reach of the operator. 7 In order to impart the necessary move-' Q ment to'the bar Liandactuatingmember 9 quickly when the end of the record has been I reached I."'have"-.hereshown the rec ord.as

provided'witha groove'21 extendin inward from the "endxjof the record an described about 'arentcr ot-her than the center device andthefa'rmto be carried inward 3 f quickly of the record, thus causingthe reproducing hen the end the "record has been reached, It willappa-rent from the foregoing description and the accompanying drawings thatl'my device, while of exceeding sim 1 plicity and comprising a very few parts, is positively actuated throughout its movement and will operate with a high degree of,

efficiency. The actual movement is im-' parted to the brake lever positively by means of the pin on the turntable engaging the brake actuating member 9 and this brake-actuating member is positively moved by the arm 5 to carry the same. ipto position to be engaged by the pin-on tbeturntable.

' \Vhile I have hereinshown and described one form of my invention it will be understood that t is .form has'been chosen-for the purpose of illustration only and that I do 7 not wish to be limited to the details of con- 1. In 'a device of the eharzu'terdescribed,

the combination, with amovable support for a record, a device, to-control the movement.

of said support, and a sounda'epriiducing device supported ad]acent to said record- 5 support and movablerelatively thereto, of an actuating member operatively connected to said controlling dev1ce,"a part carried by said record-support to engage and. actuating said actuating member, and a' device posisaid movable member and move said--act 1iby said part. on said recoideupport.

2. In a dev ce of thecharacter described, the coinl'nnatlon, with a turntable havmgp of said'turntable, a. sound-reproducing die vice adjacent to said turntable, of an'actu- 'ating member supported normally out of the path 'of the project-mu on said turntable, and means positively actuated by the movemcmber into the path of said projectionv the combination, with a turntable having a PI'OJQCUOH, a brake to control themovcdevice adjacent to said turntable, of a brakemally out of the path-of said projection, and means positively actuated by the movement of said arm to move said actuating member said prdjection,

the combination, with a turntable having a PXOjCCtIOI], a brake to control the movement of said turntable, a smaid-reproducing dedevice adjacent to siad turntable, of a brake-actual ing member supported normally out of the path of the projection'oni said turntable, a movable bar operatively connected with said actuating member, and a part carried by said arm to positively actuate said bar and move said ln-akeactuatiug member into the path of said projection.

Ina device of the charm'l'cr described, the emnbination, with a turntable having a projection, a brake tooontrol the movement of said turntable, a soiind-reprmlueing dcvice, anda movable arm to summrt said dc vice adjacent to said turntable, of a brakeactuating member pivotally supported with one and adjacent to said turntable but normally out oli the path of said proiection, a longitudinally movable bar connected with said ,m-tnating member, :1 lug projecting from said bar. and finger rarried'l y said I arm and "arranged to engage said lug to i move said actuating member intothe path oi the projection on said-turntable.

6. in a device 'of lhe character described, the combination.with a turntaliile having a 1 projection, a brake to control the movement atiug member into a position to be engaged projection, a brake to control the movement vice, and a movable arm to support said (10-- ment of said arm to move said actuatingment of said turntable, a sound-reproducine' device, and a movable arm to support said about-its pivotal center and into thepath of member, a movable member connected with tively actuated by the movement of said reproducing device to impart movement to 3. in a device of the character described,

actuating member pivotally supported withone-end adjacent to said turntable but nor-.

4. In a dcvice'of the character described,

vice, and a movable arm to support said V longitudinally movable bar connected with projection,

of said turntable, a sound-reproducing desaid actuating member, a lug projecting from said bar, a finger carried by said arm and arranged to engage said lug to move said actuating member into the path of the projection on said turntable, and a finger piece on said bar to return said actuating member to its normal position.

7. Ina device of the character described, the combination, with a turntable having a a brake to control the movement vice, and a movable arm to support said device adjacent to said turntable, of an actuating member pivotally mounted adjacent point of connection with its rod, a lug carried by said slidable bar, and a finger can ried by said arm and ada ted to engage said lug to move said actuating member about its pivotal center.

In testimony whereof, I aflix my signature in presence of two witnesses.

JAMES W. NELSON.

'Witnesses:

MoCLAmE DARMODY, CHARLES L; J canon. 

